A. Kumar et al., DICYCLOHEXANO-18 CROWN-6 IN BUTANOL-OCTANOL MIXTURE - A PROMISING EXTRACTANT OF SR(II) FROM NITRIC-ACID MEDIUM, Talanta, 45(2), 1997, pp. 387-395
The extraction of strontium from nitric acid medium was investigated e
mploying DCH18C6 in aliphatic alcohols as the diluents. 80% Butanol-20
%, octanol mixture was found to give higher D-Sr values as compared to
other alcohols investigated. A linear correlation between the organic
phase water content and D-Sr was observed, based on which the extract
ion mechanism was postulated. Effect of anion, cation, extractant conc
entration, nitric acid concentration and temperature on D-Sr was also
studied. Conditions for recovery (> 90%) were arrived at and selectivi
ty with respect to other interfering fission products was observed wit
h most of the metal ions studied. (C) 1997 Elsevier Science B.V.